Improvement in rotary engines



w. P. MAXSUN.

R o t a r y in g i n e s.

Patented Dec. 16, 1873.

V INT/EJYTOR v Attorneys.

@MWZ

UNITED STATES.-

PATENT OFFICE.

WILLIAM P. MAXSON,OF INDEPENDENCE, IOIVA.

IMPROVEMENT IN ROTARY ENGINES.

Specification forming part of Letters Patent No. 145,67 l, datedDecember 16, 1873; application filed August 27, 1873.

To all whom it may concern: I

Be it known that 1, WILLIAM P. MAX'soN, of Independence, in the countyof Buchanan and in the State of Iowa, have invented certain new anduseful Improvements in Rotary Engine and Pump; and do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings and to the letters ofreference marked thereon, making a part of this specification.

The nature of my invention consists in the arrangement of a series ofrollers, a cylinder, and certain disks or wheels within a case forforming a rotary pump, as will be hereinafter set forth.

In the annexed drawings making part of this specification, Figure l is avertical section at right angles to the pump-shaft. Fig. 2 is ahorizontal cross-section in line with the shaft. Fig. 3 is a plan viewof one of the wheels.

In the figures, A represents a hollow cylinder or casing, in which isplaced eccentrically a solid cylinder, B, which is provided with ashaft, H. The cylinder B is grooved across its periphery, and in thesegrooves are placed the four rollers O (l, equidistant apart. The rollershave at each end two bearings-an annular bearing, a, and a conicalbearing, 6. Two wheels, D and 0, support these bearings, but are placedon a true circle with the inner periphery of the hollow cylinder orcase, the

wheel D supporting the bearings a, and the bevel-wheel O supporting theconical bearing 0. By means of these wheels the cylinder B and itsrollers are made to run truly and evenly in the case A, and the cavityis easily made airtight. Set-screws may be used at the back of the wheel0 for tightening. The case A is provided with inlet and outlet pipes, asseen at A A. The water is received at one of these openings, and, thecylinder B being in motion, it is carried around in the eccentric spacesby means of the rollers O O, which revolve, and thus prevent friction,and is discharged at the other.

By the use of the rollers I have nothing but rolling friction, which isvery little, and the pump works, consequently, with great ease and withlittle noise.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The wheel B, rollers G O, and wheels D and O, in combination with thecase A, the several parts being constructed as and for the purpose setforth.

In testimony that I claim the foregoing I have hereunto set my hand this19th day of August, 1873.

. WILLIAM P. MAXSON. Witnesses:

A. N. IVIARR, CHAS. R. PRATT.

